Improvement in steam-generators



zwemt Gettin.

E. B.SINTZENICH, OF ROCHESTER, NEW YORK.

e Laim Patent No. 91,173, dated June s, 1869;

IIMPRO'VEMNT IN STEAM-GENERATORS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may conce/rn.-

` Be it known that I, E. B. SINTZENIGH, `of Rochester, county of l\[onrceStatel of' New York, have iny vented certain new and useful Improvements in Steamploile'rs; and I do herebyr 'declare that the following 1s a full, clear, and exact description thereof', reference .being had to the accompanying drawing, making part of this specification, in Which- Figure 1 is a vertical central section, showing onequarter of an ordinary uprightboiler, and the watertubes a b c d in elevation.

Figure 2 is an outlined top view, showing the arrangement of the steam'gchamber C, reduced.

The objects of my invention are, mainly, to utilize more perfectly the core of heat `rising inlthe vertical y, i `lines, andalso to produce a constant circulation of `waterin the boiler; and

` Its nature, which will be better understood by reference to the drawings and specification, consists,l principally, in locating a vertical water-tube in the centre `space atfoppositesides, and' dividing the .furnace into two parts. f A

In -the smoke-box D, Italso provide a-corresponding steam-chamber'0, figs. l and2, connected in a similarmanner. These chambers subserve several purposes.

The-steam-chamber C increases the steam-room, and at the sameI time presents additional surface to d theaction/of theheat.

he water-chamber O also increases the heatingsurface, and divides' the furnace into two independent i furnaces, and the dat sidesof both chambers provideja readymeans of connecting the water-tubes abcd.VN

The water-tubes adb c d, ligrl, I arrange centrally in'the fire-tubes or. dues a b'c'.`cl", the annular spaces between them being large enough to allow sufficient draught. y t -A These'tubes a blc cl are screwed, at their lower ends, intofr the double elbows xx, which are made long enough to reach from Acentre to, centre of the fines,

and, at `their lower sides, are provided with branches `t t. yInto `the'branches tt are screwed the shortlpipes o o', which are secured to the sheet of the boiler by an arrangement described below.

The upper ends of the tubes b and c are screwed 4 L into the elbows f and f.

These elbows I connect by means of the hollow union nut c, shown in section in fig. 1, provided with a left-hand thread at one end, and a right-hand thread at the other.

From the elbow f, I extend'the branch-pipe o.

Since the pipes o o and o o are secured tothe sheet in an exactly similar manner, I will describe but one of them.

Ihc vpipe o is threaded at both ends, and thev nut g applied at the end which is screwed through the sheet i.

'.Ihe sheet being tapped out, the `pipe o is screwed into it far enough to allow the opposite end to enter the elbow f, when, by turning it backward, the joint in the elbowis made tight. The pipe o still remaining screwed into the sheet.

The nutg is now screwed up against the latter, making a perfect joint.

The pipes aand d are screwed into the elbows j and k, which, in turn, are connected with the boiler, as described above. The object ofthe union nut c and pipes om o o', arranged as described, is to provide a ready means of putting the pipes a b c zZ together, when in their positions.

The outside shell of the boiler I oiset outward, as shown at m, fig. 1, for the purpose of obtaining additional steam-room.

My invention can be madeA of ordinary gas-pipe and fittings, and inserted by a skilled mechanic, in any boiler having vertical lues, without altering its arrangement.

'lhe circulation of the water is shown by the arrows,

and takes place not only from bottom to top, but also from the centre to outside, as shown.

I prefer to arrange the water-tubes in sets of four, which may be repeated throughout the boiler, but they may be used singly, or in sets of two or three.

My invention is particularly applicable to steam fire-engine boilers, as by means of the water-tubes I expose a large additional tire-surface, with a small proportional quantity of water.

I have found, by experiment, that I can raise steam in an ordinary hre-engine boiler, with mv invention attached, in from six to eight minutes.

It is also well'adapted to marine purposes, for vertical boilers having two or morefurnaces, and for all square or irregulanshaped boilers having vertical lues.

The chambers (l and O' may or may not be used, according to circumstances; or two of each may be used, cutting each other at right angles.

In case none are used, the connections of the pipes a b cd would be all made to the inside shell of the boiler.

'Ihe operation of my invention is as follows:

The water-tubes c b c d being arranged in the centre of the fire-dues, the hottest flame impinges on them, since the centre of any cylindrical ame is the point of greatest heat.

By this means steam is raised very fast in the tubes, and the bubbles ofv vapor rising in them, puts the columns of water 'in motion in the manner shown.

I EL I I What I claim as my invention, and desire to secure steam and water-spaces of upright boilers at opposite by Letters Patent, lssides, in combination with the water-tubes a b c d, sub- 1. The combination and arrangement of the waterstantially as set forth. tubes a b c d with reference to each other, and to the E. B. SINTZENIOH. steam and water-spaces of upright boilers, substantially as described. Witnesses:

2. The steam-chamber C, with its con'espondng F. H. CLEMENT,

water-chamber @communicating with the annular WM. S. LOUGIBOROUGH. 

